EP1258873A2 - Support d'enregistrement de densité levée en forme de disque à trou central à profil asymétrique, et procédé pour sa fabrication - Google Patents

Support d'enregistrement de densité levée en forme de disque à trou central à profil asymétrique, et procédé pour sa fabrication Download PDF

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Publication number
EP1258873A2
EP1258873A2 EP02010721A EP02010721A EP1258873A2 EP 1258873 A2 EP1258873 A2 EP 1258873A2 EP 02010721 A EP02010721 A EP 02010721A EP 02010721 A EP02010721 A EP 02010721A EP 1258873 A2 EP1258873 A2 EP 1258873A2
Authority
EP
European Patent Office
Prior art keywords
disk
center hole
spindle
wall
center
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02010721A
Other languages
German (de)
English (en)
Other versions
EP1258873A3 (fr
Inventor
Jin Yong Kim
Kyung Chan Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020010042649A external-priority patent/KR100582955B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1258873A2 publication Critical patent/EP1258873A2/fr
Publication of EP1258873A3 publication Critical patent/EP1258873A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
EP02010721A 2001-05-14 2002-05-14 Support d'enregistrement de densité levée en forme de disque à trou central à profil asymétrique, et procédé pour sa fabrication Withdrawn EP1258873A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20010026249 2001-05-14
KR2001026249 2001-05-14
KR1020010042649A KR100582955B1 (ko) 2001-05-14 2001-07-14 비대칭 상하구조의 중앙홀을 갖는 고밀도 광디스크 및 그 제조방법
KR2001042649 2001-07-14

Publications (2)

Publication Number Publication Date
EP1258873A2 true EP1258873A2 (fr) 2002-11-20
EP1258873A3 EP1258873A3 (fr) 2004-09-08

Family

ID=26639076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010721A Withdrawn EP1258873A3 (fr) 2001-05-14 2002-05-14 Support d'enregistrement de densité levée en forme de disque à trou central à profil asymétrique, et procédé pour sa fabrication

Country Status (4)

Country Link
US (1) US7484231B2 (fr)
EP (1) EP1258873A3 (fr)
JP (1) JP3696175B2 (fr)
CN (1) CN1305037C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100582955B1 (ko) * 2001-05-14 2006-05-23 엘지전자 주식회사 비대칭 상하구조의 중앙홀을 갖는 고밀도 광디스크 및 그 제조방법
US7484231B2 (en) 2001-05-14 2009-01-27 Lg Electronics Inc. High-density disk recording medium having an asymmetrically-shaped center hole and manufacturing method thereof
EP2833358A4 (fr) * 2012-03-28 2016-02-17 Panasonic Corp Disque

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI260004B (en) * 2002-03-04 2006-08-11 Ritek Corp Write-once high-density CD-recordable layer structure and manufacturing method
US8826311B2 (en) 2011-05-10 2014-09-02 Panasonic Corporation Information recording medium and holding device for holding information recording medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151632B2 (fr) 1983-03-14 1986-11-10 Stanley Electric Co Ltd
EP0284387A2 (fr) 1987-03-24 1988-09-28 Mitsubishi Denki Kabushiki Kaisha Matrice pour disque
KR0126249Y1 (ko) 1995-06-23 1998-09-15 오철석 완충장치를 지니는 스피닝릴
KR200142649Y1 (ko) 1996-06-19 1999-06-01 양회선 무선통신방식의 실물 화상기

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2529179B2 (ja) 1984-08-20 1996-08-28 松下電器産業株式会社 情報記録担体
EP0314010B1 (fr) * 1987-10-27 1994-05-18 Seiko Epson Corporation Disque d'enregistrement d'information
JP3384002B2 (ja) * 1992-01-24 2003-03-10 ソニー株式会社 ディスクテーブル及び記録及び／又は再生装置
ATE168492T1 (de) * 1992-05-26 1998-08-15 Sony Corp Verfahren zur befestigung einer magnetplatte auf ein plattensubstrat
JPH064908A (ja) * 1992-06-22 1994-01-14 Awa Eng Co 光ディスクとその製造装置
JPH09320159A (ja) * 1996-05-27 1997-12-12 Mitsubishi Electric Corp 貼り合せディスクのターンテーブル装置および貼り合せディスク
JPH10283683A (ja) 1997-02-05 1998-10-23 Sony Corp 光記録媒体及びその製造方法
JPH1186346A (ja) * 1997-09-09 1999-03-30 Sony Corp 光ディスク、光ディスクの製造方法及び光ディスク原盤の製造方法
US6495235B2 (en) * 2000-03-24 2002-12-17 Matsushita Electric Industrial Co., Ltd. Optical disk, substrate of the same, and mold for forming the substrate
EP1152407A3 (fr) 2000-04-25 2006-10-25 Matsushita Electric Industrial Co., Ltd. Disque optique,son procédé de fabrication et appareil pour sa fabrication
US7484231B2 (en) 2001-05-14 2009-01-27 Lg Electronics Inc. High-density disk recording medium having an asymmetrically-shaped center hole and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151632B2 (fr) 1983-03-14 1986-11-10 Stanley Electric Co Ltd
EP0284387A2 (fr) 1987-03-24 1988-09-28 Mitsubishi Denki Kabushiki Kaisha Matrice pour disque
KR0126249Y1 (ko) 1995-06-23 1998-09-15 오철석 완충장치를 지니는 스피닝릴
KR200142649Y1 (ko) 1996-06-19 1999-06-01 양회선 무선통신방식의 실물 화상기

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"FRUSTRUM-SHAPED OPTICAL DISK AND MATING RECEPTABLE", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 37, no. 11, 1 November 1994 (1994-11-01), pages 529 - 530

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100582955B1 (ko) * 2001-05-14 2006-05-23 엘지전자 주식회사 비대칭 상하구조의 중앙홀을 갖는 고밀도 광디스크 및 그 제조방법
US7484231B2 (en) 2001-05-14 2009-01-27 Lg Electronics Inc. High-density disk recording medium having an asymmetrically-shaped center hole and manufacturing method thereof
EP2833358A4 (fr) * 2012-03-28 2016-02-17 Panasonic Corp Disque

Also Published As

Publication number Publication date
US7484231B2 (en) 2009-01-27
US20020181387A1 (en) 2002-12-05
CN1305037C (zh) 2007-03-14
JP3696175B2 (ja) 2005-09-14
EP1258873A3 (fr) 2004-09-08
CN1385841A (zh) 2002-12-18
JP2003006936A (ja) 2003-01-10

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